CVE-2022-21443Network attack vector

Unauthenticated partial service interruption

Published Apr 19, 2022 · Updated Aug 3, 2024

Availability flaw in Oracle Java SE 7u331, 8u321, 11.0.14, 17.0.2, and 18 allows remote attackers to cause a partial service interruption. Oracle reports the same issue in GraalVM Enterprise Edition 20.3.5, 21.3.1, and 22.0.0.2 but has not disclosed the affected library or the wrong operation on untrusted input. Exploitation requires sandboxed untrusted Java code or a service that passes attacker-supplied data to the Libraries APIs; the documented consequence is limited to partial loss of availability.

CVSS severity3.7
Low
EPSS probability2.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Availability flaw in Oracle Java SE 7u331, 8u321, 11.0.14, 17.0.2, and 18 allows remote attackers to cause a partial service interruption. Oracle reports the same issue in GraalVM Enterprise Edition 20.3.5, 21.3.1, and 22.0.0.2 but has not disclosed the affected library or the wrong operation on untrusted input. Exploitation requires sandboxed untrusted Java code or a service that passes attacker-supplied data to the Libraries APIs; the documented consequence is limited to partial loss of availability.

The record

CVE
CVE-2022-21443
Published
Apr 19, 2022
Updated
Aug 3, 2024
Vendor
Oracle Corporation
Product
Java Platform, Standard Edition (Java SE)
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Oracle GraalVM Enterprise Edition:20.3.5
  2. Affected versionversion=Oracle GraalVM Enterprise Edition:21.3.1
  3. Affected versionversion=Oracle GraalVM Enterprise Edition:22.0.0.2
  4. Affected versionversion=Oracle Java SE:11.0.14
  5. Affected versionversion=Oracle Java SE:17.0.2
  6. Affected versionversion=Oracle Java SE:18
  7. Affected versionversion=Oracle Java SE:7u331
  8. Affected versionversion=Oracle Java SE:8u321

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Java Platform, Standard Edition (Java SE)version=Oracle GraalVM Enterprise Edition:20.3.5; version=Oracle GraalVM Enterprise Edition:21.3.1; version=Oracle GraalVM Enterprise Edition:22.0.0.2; version=Oracle Java SE:11.0.14; version=Oracle Java SE:17.0.2; version=Oracle Java SE:18; version=Oracle Java SE:7u331; version=Oracle Java SE:8u321

Published CVSS scores

3.7OracleCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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